Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20187989 (number)

20187989 is an odd 8-digits prime number following 20187988 and preceding 20187990. In scientific notation, it is written as 2.0187989 × 10^7. The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors. There are 20187988 positive integers (up to 20187989) that are relatively prime to 20187989.

Interesting facts

20187989 has 2 divisors, whose sum is 20187990
The reverse of 20187989 is 98978102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty million one hundred eighty-seven thousand nine hundred eighty-nine

Notation

Scientific notation	2.0187989 × 10^7
Engineering notation	2.0187989 × 10^6

Prime Factorization of 20187989

Prime Factorization 20187989

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20187989	Product of the distinct prime numbers

The prime factorization of 20187989 is 20187989. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 1, 39, 99, 784, 276, 7966, 8753, 90125, 92728, 711347, 188874, 7610982, 7686978, 88103524, 36361593, 889162577, 304349553, 3292063994, 2904947013

Basic calculations (n = 20187989)

Multiplication

n×y

n×2	40375978
n×3	60563967
n×4	80751956
n×5	100939945

Division

n÷y

n÷2	10093994.5
n÷3	6729329.6666667
n÷3	5046997.25
n÷5	4037597.8

Exponentiation

n^y

n²	407554899864121
n³	8.227713835353E+21
n⁴	1.6610099640325E+29
n⁵	3.3532450882779E+36

Nth Root

^y√n

²√n	4493.104605949
³√n	272.28957859993
⁴√n	67.030624388775
⁵√n	28.908037664028

Divisors of 20187989

1, 20187989

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20187990	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10093995	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4493.1047172306	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999009312	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20187989 can be divided by 2 positive divisors. The sum of these divisors (counting 20187989) is 20187990, the average is 10093995.

Base conversion 20187989

Base	System	Value
2	Binary	1001101000000101101010101
3	Ternary	1101222122201022
4	Quaternary	1031000231111
5	Quinary	20132003424
6	Senary	2000410525
8	Octal	115005525
10	Decimal	20187989
12	Duodecimal	6916a45
16	Hexadecimal	1340b55
20	Vigesimal	6639j9
36	Base36	c0p5h

Cryptographic Hash Functions

md5	a4591a5f9f7ce612d7dabc0068a5d7e9
sha1	6b2f1079b6114b0869ff5f9d41241af2c19a2bec
sha256	ba6871ffc8baf111fbd9dc4282aeae3b05712b63142f6fd4f90c960124af34cf
sha512	203f3a8e85c333b14bff05410361fc29b7ec6cb7f634a65cee33f580e7fda023fd39c3c5215fdbf40b41d1f61e28eba8ec171ef7e67462c50f86734ab62a9302
ripemd-160	9fb84d14f38bf74d644ac84cf0b0d5499804fbe0

20187989 as geometric shapes

Circle

Radius = n

Diameter	40375978
Circumference	126844875.8663
Area	1.2803714793476E+15

Sphere

Radius = n

Volume	3.4464167121312E+22
Surface area	5.1214859173906E+15
Circumference	126844875.8663

Square

Length = n

Perimeter	80751956
Area	407554899864121
Diagonal	28550127.840839

Cube

Length = n

Surface area	2445329399184726
Volume	8.227713835353E+21
Space diagonal	34966622.650642

Equilateral Triangle

Length = n

Perimeter	60563967
Area	1.7647644835958E+14
Altitude	17483311.325321

Triangular Pyramid

Length = n

Surface area	1.7647644835958E+14
Volume	9.6964537444008E+20
Height	9516709.2802796